Hello, we have a wide range of products which include threaded fittings, element cubes, Stirling engines and some tools and some other products. Our threaded couplings are strong and durable, while our component cubes are perfect for STEM education and experimentation. The Stirling engine is innovative and efficient, and is more likely to guide children's interest. There are too many products to list, so if you have any specific questions about our products, please feel free to ask.
This is a good quality item. Cube dimensions are to excellent tolerance and the mass is spot on for the element's density. A nice touch is the protective clear plastic box into which the specimen is a close sliding fit. Deleivery was received in good time. Would definitely buy from this seller again.